Which one of the following statements is $\text{FALSE?}$
- For an ideal gas, the enthalpy is independent of pressure.
- For a real gas going through an adiabatic reversible process, the process equation is given by $P V^\gamma=$ constant, where $P$ is the pressure, $V$ is the volume and $\gamma$ is the ratio of the specific heats of the gas at constant pressure and constant volume.
- For an ideal gas undergoing a reversible polytropic process $P V^{1.5}=$ constant, the equation connecting the pressure, volume and temperature of the gas at any point along the process is $\frac{P}{R}=\frac{m T}{V}$, where $R$ is the gas constant and $m$ is the mass of the gas.
- Any real gas behaves as an ideal gas at sufficiently low pressure or sufficiently high temperature.